.acontainer {
    width: 100%;
    height: 100vh;
    background: url(../img/background.png) repeat fixed center;
    background-position: center;
    background-size: cover;
    padding-left: 8%;
    padding-right: 8%;
    box-sizing: border-box;
}
.acontainer .navbar {
    height: 12%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.acontainer .navbar .user-info {
    display: flex;
    align-items: center;
}

.acontainer .navbar .user-info .el-avatar {
    margin-right: 10px;  /* 头像与用户名之间的间隔 */
}

.acontainer .navbar .user-info .username {
    color: #fff;  /* 用户名的字体大小与颜色 */
}

.acontainer.logo {
    width: 50px;
    cursor: pointer;
}
.acontainer .menu-icon {
    width: 30px;
    cursor: pointer;
    margin-left: 40px;
}
.acontainer nav {
    flex: 1;
    text-align: right;
}
.acontainer nav ul li {
    list-style: none;
    display: inline-block;
    margin-left: 60px;
}
.acontainer nav ul li a {
    text-decoration: none;
    color: #fff;
    font-size: 13px;
}
.acontainer .row {
    display: flex;
    height: 88%;
    align-items: center;
}
.acontainer .col {
    flex-basis: 50%;
}
.acontainer h1 {
    color: #fff;
    font-size: 100px;
}
.acontainer p {
    color: #fff;
    font-size: 11px;
    line-height: 15px;
}
.acontainer button {
    width: 180px;
    color: #000;
    font-size: 12px;
    padding: 12px 0;
    background: #fff;
    border: 0;
    border-radius: 20px;
    outline: none;
    margin-top: 30px;
    cursor: pointer;
}
.acontainer .card{
    width: 240px;
    height: 230px;
    display: inline-block;
    border-radius: 10px;
    padding: 15px 25px;
    box-sizing: border-box;
    cursor:pointer;
    margin: 10px 15px;
    background-position: center;
    background-size: cover;
    transition: transform 0.5s;
}
.acontainer .card1{
    background-image: url(../img/pic-1.png);
}
.acontainer .card2{
    background-image: url(../img/pic-2.png);
}
.acontainer .card3{
    background-image: url(../img/pic-3.png);
}
.acontainer .card4{
    background-image: url(../img/pic-4.png);
}
.acontainer.card:hover{
    transform: translateY(-10px);
}
.acontainer .card h3 {
    color: #fff;
    text-shadow: 0 0 5px #999;
}
.acontainer .card p{
    text-shadow:  0 0 5px #000;
    font-size: 8px;
}

.acontainer .navbar h3 {
    color: #fff;
}